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After some mice ate a few wires and those lights came on, I assumed the 'norm'. Much troubleshooting and learning later, apparently the critters must've shorted a computer circuit.
So now... I can't pass smog with the CE light on. I worked on it for a year (before my next smog test) with no luck. Sometimes the CE light would be off for awhile and I'd think the problem was fixed. Sometimes not, and I'd begin the next step and pulling my limited hair out.
I replaced the charcoal canister, some solanoids, other stuff... sometimes the light would stay out, but eventually it'd come back on.
THEN I connected with a mechanic that understood the "system".
The computer runs a test on the evap system at startup. But it doesn't run the test "IF" the fuel tank is more than 3/4 full ( and the computer has been reset by disconnecting the battery for a few minutes). It isn't supposed to run the test if the fuel is below 1/4 AND the engine is warm.
My evap system has been mostly replaced, and the rest verified to be working correctly. But the test fails. To me, the mice must've shorted out a circuit in the computer than controls this test.
So to pass the CA smog test, I gotta fill the tank, disconnect/reconnect the battery, then get my test before the tank goes below 3/4.
Maybe this'll help someone with the same problem.
Phil
Assuming there is a problem with oxygen sensor, I wonder what would be the consequences of not replacing it for a while (~couple of weeks).
I couldn't find a post number in the Maintenance and Repair Forum. How do I get to Post 4360 and 4362?
When we migrated to the new platform, we lost the post numbers, I'm afraid..
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There's 20 posts per page (currently, at least). So divide 4360 by 20 and you wind up at "page" 218. The posts you are searching should be on that page, or within a page. Perhaps this is close to the ones you are looking for?
Thank you Moderators for those two responses, it was pretty close....213 had the posts I was looking for.
Ok, within a page or five. Glad you found it.
Can anyone tell me how that they were able to get to page 213? I am only seeing 6 pages.
Thx
I think this is the post you're searching for, but it refers to using a borrowed scanned to clear the code. Maybe try some more auto parts stores to see if someone will clear the codes for free..
.
Took it to nearby Napa Auto Parts. They checked codes for free. Issue ended up being hardened gas cap seal. New $8 gas cap did the trick. Great job Napa!